单词：phenylpropanoid
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英文魔法师字源大挪移
By Mike O'Sullivan 27 July 2007 United Nations Secretary-General Ban Ki-moon is on a two-day visit to California to discuss climate change and other global challenges. Mike O'Sullivan reports from San Francisco, the secretary-general says the United
2007年VOA标准英语（七月）
[00:17.36]Figure On The Proch [00:26.40]门廊鬼影 [00:36.51]Back in the early 1980s my aunt lived in a house [00:41.27]that was literally located in the middle of nowhere. [00:46.05]It used to really creep my younger brother and me out, [00:50.28]but
英语灵异故事
[00:17.23]Figure On The Proch [00:26.43]门廊鬼影 [00:35.14]I lay back down and tried to go back to sleep. [00:39.57]After I had lain there for about 5 minutes, [00:43.12]I started to hear a tapping sound. [00:45.77]I listened for a minute, [00:48.07]
英语灵异故事
Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s
万物简史
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
Scientific American(三)月
Fun Fact: Alligators Can Regrow Teeth 有趣的事实：短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal
初学者听力文摘精选
You know, I just wanna say one brief thing about something the previous speaker said. I didn't wanna spend too much time on that 'cause I don't think it's important enough. But one thing is worth considering. He's the -- He's the nominal head of an
名人演讲
its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th
英语听力文摘 English Digest
This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ
Scientific American(四)月
Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the
Scientific American(十一)月
And now for Money Myths, a new feature from Michelle Singletary. She is Day to Days personal finance contributor, and a regular Tuesday guest. And as the title implies, Michelle will try to correct some financial myths we all may have. She spoke ear
2005年NPR美国国家公共电台
Larry到李华住的地方，去看她新领养的猫咪小雪球。今天李华会学到两个常用语：mental和pro. LL: Snowball is adorable! She's so little and fluffy! LH: 就是啊，我的猫咪
美国之音《流行美语》
By Peter Fedynsky Washington, D.C. 19 February 2007 watch Appropriations report On the same day that the U.S. House expressed its disapproval of sending more troops to Iraq, the White House asked lawmakers to approve additional money for Iraq's econ
2007年VOA标准英语（二月）
By Brian Wagner Miami 22 September 2009 A supporter of Honduras' ousted President Manuel Zelaya runs during clash with riot police in front of Brazil embassy in Tegucigalpa, 22 Sep 2009 Riot police in Honduras on Tuesday broke up marches by supporte
VOA标准英语2009年(九月)
A coalition of religious groups and refugee organizations wants U.S. President-elect Barack Obama to take a new approach to Chad. The coalition of aid groups says the Obama administration should set a new foreign policy agenda for Chad that includes
VOA标准英语2009年(一月)
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
今天我们要学的词是pro-life。 Pro-life意思是反对妇女有堕胎的选择权。Pro-life的对立面是 pro-choice，支持妇女的堕胎权。美国总统奥巴马不久前在圣母大学发表毕业演讲。Hundreds of pro-life activis
英语每日一词
By Jeff Swicord Washington 03 November 2009 For decades, AIPAC (The American Israel Public Affairs Committee) has been the pro-Israel lobby in the United States, bolstered by a massive membership -it says 100,000 - among America's six million Jews.
VOA标准英语2009年(十一月)
You might not think there would be that many people in the world prepared to devote lifetimes to the study of something so inescapably low key, 你或许会认为，世界上不会有多少人愿意花毕生的心血来研究那个不起眼儿的东西
万物简史